Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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quiz scores stem leaf 4 0,9 5 6,8,9 6 1,4,7 7 3,5,6,8 8 0,5,7,8 9 2,6 w…
56
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mary scored exactly a 73 on how many tests? 2 1 3 4
1
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the diagram shows the heights of mr pearces plants. how many plants hav…
2
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4) (4 points) let a and b be events. suppose that the probability that …
(a) $0.5$ (b) $0.5$ 5) $492960$
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football scores stem leaf 0 0 1 5 1 3 4 5 6 7 2 1 4 4 7 8 3 0 5 key: 1|…
24
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how many times did mary score below a 60 on her tests? 0 3 4 5
3
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for exercises 6 and 7, use the table to answer the questions. abigails …
She will not meet her goal. She will walk 14 miles in a week.
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4. what might the narrator have meant when she said, \the computer sat …
C. The computer was a reminder of the always lingering feeling that life should be better or fuller.
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how many scores are listed in this stem and leaf plot? 3 6 18 9
18
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which set of data belongs to this stem - and - leaf plot? key 1|2 = 12 …
\(8,12,17,18,19,22,23,31,35,40\) (the third option)
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a sentence is a group of words that conveys a complete meaning. in orde…
A. 1. My brother plays basketball after school. 2. The newspaper arrives in the morning. 3. You sing beautifully. 4. The cat chases the mouse. 5. The band performs on stage. B. 1.…
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review the fourth paragraph. not so lonely planet are we alone? this qu…
The idea that Area 51 might hold evidence of alien life is not relevant to the main claim.
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dogs weights (lbs) stem leaf 4 0 2 4 4 8 5 3 3 0 6 7 1 2 4 8 2 2 8 9 0 …
90
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dogs weights (lbs) stem leaf 4 02448 5 339 6 7 1224 8 2289 9 0 how many…
2
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3 - 1. subjects and predicates (part one) a sentence is a group of word…
A. 1. My brother played football. 2. The newspaper lies on the table. 3. You are reading a book. 4. The cat chased a mouse. 5. The band played loudly. B. 1. The dog looked at me s…
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5.37 sisters and brothers. how strongly do physical characteristics of …
a. After using a calculator or software, the correlation coefficient \(r\) and the equation of the least - squares line \(y=bx + a\) can be obtained. Then make a scatterplot with …
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football scores stem leaf 0 015 1 34567 2 14478 3 05 key: 1|3 = 13 poin…
2
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this shows how many baseball cards a group of friends have in their col…
8
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dogs weights (lbs) stem leaf 4 02448 5 339 6 7 1224 8 2289 9 0 how many…
5
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14. which vocabulary term means the distribution of seats in the house …
B. Apportionment
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what is the cost of freedom? by ryder carlton 1 a motorcycle means one …
motorcycle safety.
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read the excerpt from the passage in alice in wonderland. 9 \and yet i …
C. Teacher
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which word contains the greek root meaning fire? a. charcoal b. explosi…
D. Pyromaniac
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2) (4 points) let a and b be events. suppose that the probability that …
2(a). $0.2$ 2(b). $0.2$ 3(a). It is not possible because $P(A\cup B)=1.1>1$. 3(b). It is not possible because $P(A\cap B)=0.7 > P(A)=0.6$.
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this chart shows some information about a typical worker at the turn of…
B. a rise in union membership and activity
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3.2 measures of spread: standard deviation and variance concrete formul…
Mean: \(4185.7\), Standard - deviation: \(133.9\)
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write a system of equations to describe the situation below, solve usin…
After completing 1 sets, they will both be lifting 50 pounds.
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5.34 husbands and wives. the mean height of american women in their twe…
a. Slope $b_1\approx0.574$, intercept $b_0\approx33.0$. The slope means for every 1 - inch increase in wife's height, husband's height is expected to increase by about $0.574$ inc…
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what is rhetoric? an attempt to manipulate readers meaningless speech t…
C. The art of persuasive speaking or writing
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which statement about critical thinking is true? it accepts facts witho…
It means analyzing and solving problems.
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which of the following does the preamble summarize? most of the laws in…
the meaning of the entire Constitution
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you have been given the assignment of speaking about the affects of ill…
b. a library book about the pharmaceutical drug industry in America
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in the preamble, what is meant by \insure domestic tranquility\? the na…
People should obey the laws.
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wine intake x (grams of alcohol per day) 2.5 8.5 15.5 26.5 relative ris…
a. We expect a positive correlation based on the scatter - plot as the relative risk seems to increase with wine intake. b. The correlation \(r\approx0.986\), which is positive an…
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instructions. show all your work to get full credit. circle your final …
(a) Not a valid probability assignment because \(P(e_1)+P(e_2)+P(e_3) eq1\). (b) Not a valid probability assignment because \(P(e_2)<0\). (c) Valid probability assignment as \(P(…
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a random sample of print - o - matic printing companys employee salarie…
a) Mean: $94680.7$ dollars, Median: $74773$ dollars, Range: $219782$ dollars, Standard deviation: $105837.7$ dollars b) Mean: $82826.1$ dollars, Median: $74235$ dollars, Range: $5…
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3.2 measures of spread: standard deviation and variance the table below…
Min = 13 Max = 50 Range = 37 Mean = 33.25 Standard Deviation = 10.08
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for the sample data shown, answer the questions. round to 2 decimal pla…
Find the mean: 16.05 Find the median: 16.75 Find the sample standard deviation: 6.78
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3.2 measures of spread: standard deviation and variance which of the fo…
A. $s$
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3.2 measures of spread: standard deviation and variance which of the fo…
$\sigma$
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a printing company spends specific amounts on fixed costs every month. …
$2086$
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the lengths (in kilometers) of rivers on an island are listed in the ta…
273
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purchase and expense types purchases can be categorized as either discr…
1. a. N b. D c. D d. N 2. a. V b. F c. V d. F
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as used in this excerpt, what does the phrase \steel herself\ most clos…
B. get ready for something difficult
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here is a data set: 55 66 52 48 59 58 40 66 59 78 53 45 43 53 54 59 45 …
368
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a survey was taken of a random sampling of residents of new york city a…
There is a greater percentage of LA residents who own a car than NYC residents who do.
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in a relatively pointless survey, the following data was collected on c…
purple
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the graph shows the ages of different concertgoers who have backstage p…
The two holders of back - stage passes whose ages are above 40 make the mean age higher than the median age.
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the conditional relative frequency table was generated using data that …
0.3
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during one shift, the express lane clerk recorded how many times custom…
14
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after spending a majority of the day in school, most students carry add…
D. unusual
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data was collected for 40 randomly selected trees growing in the median…
99
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data was collected for a sample of organic snacks. the amount of sugar …
\(44\)
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violet creates two spinners for a game. each spinner is spun once, and …
The mean is the same as the median.
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according to the line graph above, between which two consecutive years …
D. 2010 - 2011
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determine the distribution of the data pictured below frequency 0.5 1.5…
Bell - shaped
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which of the following scatterplots shows a relationship that is approp…
A
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given a single set of quantitative data, choose the best type of graph …
C. Histogram
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based on the histogram above, what is the frequency of the class contai…
8
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based on the histogram above, what is the class width? class width = wh…
Class width = 2 Sample size = 37
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michael swam 2,000 yards on each of eighteen days. the scatter - plot a…
B. 2
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determine the distribution of the data pictured below uniform bell - sh…
Skewed - left
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n psychology students took a standardized test. the scores are summariz…
17
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find the mean of the following set of integers. 11, 16, 18, 14, 4, 18, …
11
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miles traveled by air passengers in country x, 1960 to 2005 number of m…
C. 2003
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120 psychology students took a standardized test. the scores are summar…
64
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question 12 of 15, step 1 of 1 find the median of the following set of …
$96.5$
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here is a data set that has a nearly normal distribution. data data dat…
3
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question 11 of 15, step 1 of 1 find the mean of the following set of da…
$34.47$
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question 10 of 15, step 1 of 1 find the median of the following set of …
$37.99$
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part 1 of 4 (a) find the mean. rounding rule for the mean: round to one…
Since we don't have the data set, we cannot calculate the median. We only know from part (a) that the correct mean is 171.9.
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alejandro wants to determine the average shoe size of all of the male s…
B. every member of the boys’ basketball team
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data was collected for 283 randomly selected 10 - minute intervals. for…
19
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find the number of modes, if any, in the following set of data. if a mo…
1. The mode is \(19.26\)
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module 2 quiz descriptive statistics score: 40/190 answered: 4/19 quest…
36.0
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question 8 of 15, step 1 of 1 find the median of the following set of d…
$57$
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question 4 ages number of students 15 - 18 9 19 - 22 2 23 - 26 2 27 - 3…
$25.0$
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question 7 of 15, step 1 of 1 find the number of modes, if any, in the …
1, 6.01
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widths of solar eclipses the widths in miles of 14 solar eclipses in th…
$167.5$
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question 6 of 15, step 1 of 1 find the number of modes, if any, in the …
0
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find the mean of the following set of integers. 6, 5, 10, 14, 14, 17
11
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module 2 quiz descriptive statistics score: 20/190 answered: 2/19 quest…
Class midpoint
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which of the following graphs best shows a strong negative association …
D ### 2. Second question (air - passenger miles)
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find the mean of the following set of integers. 1,12,2,14,6
7
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the graph represents the distribution of the number of questions answer…
4
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find the mean of the following set of data. round your answer to the ne…
58
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question 2 of 15, step 1 of 1 find the median of the following set of d…
$56.51$
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find the range of the following set of data. round your answer to the n…
71
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nico wanted to determine the number of students in his school who buy s…
D. observational study
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a store manager is looking at past jewelry sales to determine what size…
1.15
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4. according to henry, what are the \means\ the colonies have to defeat…
D. people willing to fight, allies, and a just cause
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identifying and interpreting figurative language hamlet says, \denmarks…
Hamlet uses a metaphor. He implies feeling trapped in Denmark, conveying his dissatisfaction and sense of confinement.
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ms. johnson uses a statistics program to analyze all the data collected…
D. 6.3
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which value for r in the table would most likely indicate an associatio…
0.79
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which line fits the data graphed below? choose 1 answer: a a b b c c d …
B. B
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age, most americans worked on farms or in small workshops as independen…
B. Workers had less control over their hours and working conditions. C. Skilled craftsmanship was replaced by repetitive tasks in factories.
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use the scenario below to answer the following multipart question time …
(a) D. -8 (b) D. 150 (c) The initial value represents the number of gallons of water in the tank at the start (time $t = 0$) before any water has drained.
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1 \some historians believe the confederacy first came together about 90…
A. A political and cultural alliance
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studying structure quick check what is the meaning of aesthetic impact?…
Feelings relating to the senses.
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name: period: sonnet 18 - standard based questions 1. why does the sonn…
1. Starting with a question engages the reader and sets up the theme exploration. 2. Lines highlighting unique qualities of the addressee can show a different recipient. 3. "Lease…